Siebold's Hosta

Hosta sieboldiana

Asparagaceae · perennial · introduced

Last updated

Quick Facts

Origin
Japan

Field Observations

Hosta sieboldiana - new leaves
Field Observation
Hosta sieboldiana · Siebold's Hosta
new leaves
April 25, 2026 · Soos Creek Botanical Garden · 1,580 GDD₃₂ · BBCH 09
Hosta sieboldiana ‘Frances Williams’ - leaf emergence
Field Observation
Hosta sieboldiana ‘Frances Williams’ · Hosta
leaf emergence
April 20, 2026 · Lake Wilderness Arboretum · 1,509 GDD₃₂ · BBCH 11

Phenological Calendar

Stage Typical Window
new leaves BBCH 09 —
Leaf emergence BBCH 11 —

Cultivars (2)

‘Elegans’
Classic large blue-green hosta with heavy texture
Hosta sieboldiana ‘Frances Williams’ – leaf emergence
‘Frances Williams’
Gold margin sport of Elegans; golden edge on blue-green leaves
Data Maturity
Baseline Extension data. Expert review underway.